On some Linux systems, neither birchdb nor lbirchdb will launch:

{crow.cs.umanitoba.ca:/home/other/staff/frist}lbirchdb
/home/other/staff/frist/BIRCH/local/lib-linux-x86_64:/home/other/staff/frist/BIRCH/lib-linux-x86_64:/home/other/staff/frist/BIRCH/lib-linux-x86_64/openwin/lib:/home/other/staff/frist/BIRCH/lib-linux-x86_64/fc4libs:
Traceback (most recent call last):
File "/home/other/staff/frist/BIRCH/script/lbirchdb", line 7, in <module>
birchace.call_ace(os.path.join(birchenv.BIRCH, 'local', 'public_html', 'birchdb'))
File "/import/share/tmp/frist/script/birchace.py", line 58, in call_ace
subprocess.call(['xace'], env=ACEENV) # &
File "/usr/lib64/python2.6/subprocess.py", line 478, in call
p = Popen(*popenargs, **kwargs)
File "/usr/lib64/python2.6/subprocess.py", line 639, in __init__
errread, errwrite)
File "/usr/lib64/python2.6/subprocess.py", line 1220, in _execute_child
raise child_exception
OSError: [Errno 2] No such file or directory